title: Torsion-induced persistent current in a twisted quantum ring.
abstract: We describe the effects of geometric torsion on the coherent motion of electrons along a thin twisted quantum ring. The geometric torsion inherent in the quantum ring triggers a quantum phase shift in the electrons' eigenstates, thereby resulting in a torsion-induced persistent current that flows along the twisted quantum ring. The physical conditions required for detecting the current flow are discussed.
authors.affiliation: Department of Applied Physics, Graduate School of Engineering, Hokkaido University, Sapporo 060-8628, Japan. taira@eng.hokudai.ac.jp
authors.forename: Hisao
authors.initials: H
authors.lastname: Taira
authors.forename: Hiroyuki
authors.initials: H
authors.lastname: Shima
mesh_terms: D003198:Computer Simulation; D004574:Electromagnetic Fields; D004583:Electrons; D008962:Models, Theoretical; D011789:Quantum Theory